Calculate like terms:
7x-8=8x
7x-8x=8
-x=8
-x/-1=8/-1
x=-8
(5x+1)(5x-1) tell me if you want to know how to do this problem :)
Answer:
I think the answer is Option D, 135 degrees.
Since the angles of all of the octagon combined is 1080, divide that by 8 to get 135 which means that all 8 angles are 135 degrees.
The answer is 2/25, this should be hepful!
Answer:
D
Step-by-step explanation:
because I remember doing this before
